C: Add return, dedupe ultisnips

UltiSnips/c.snippets

@@ -20,14 +20,6 @@ ${VISUAL}${0}
 #endif
 endsnippet
 
-snippet inc "#include local header (inc)"
-#include "${1:`!p snip.rv = snip.basename + '.h'`}"
-endsnippet
-
-snippet Inc "#include <> (Inc)"
-#include <${1:.h}>
-endsnippet
-
 snippet mark "#pragma mark (mark)"
 #if 0
 ${1:#pragma mark -

snippets/c.snippets

@@ -98,6 +98,8 @@ snippet case
 	case ${1:/* variable case */}:
 		${2}
 		${3:break;}
+snippet ret
+	return ${0};
 ##
 ## Loops
 # for